--- service: i.root-servers.net start-period: '2014-05-02T00:00:00Z' end-period: '2014-05-03T00:00:08Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2627794183 dns-udp-queries-received-ipv6: 184005444 dns-tcp-queries-received-ipv4: 5458842 dns-tcp-queries-received-ipv6: 251625 dns-udp-responses-sent-ipv4: 2576432060 dns-udp-responses-sent-ipv6: 187201766 dns-tcp-responses-sent-ipv4: 5465815 dns-tcp-responses-sent-ipv6: 251249